Owen cites the answer correctly—since the names of Those Other Skymetals are on the Pathfinder Reference Document, you can use their names.
You still cannot reference Pathfinder Campaign Setting: Technology Guide by name in your product's running text (you will still need to update Section 15 of your OGL statement accordingly, of course).

That's nice and good, but I still don't see it as giving somebody the kind of peppiness a shot of adrenaline to the same place would. I'm assuming by the conditions over there you guys have some stockpiled just in case of emergency, or GenCon crunch.

Third-party publishers are prohibited from using Paizo's setting material in their releases. I do try and do a bi-weekly highlight of third-party releases in the Paizo store blog—here's a link to the latest.